Re: panic while installing latest snapshot after "enable mbufs in high memory"

On Fri, Jul 31, 2026 at 02:41:12AM +0200, Hrvoje Popovski wrote:
> isa0 at mainbus0
> enable mbufs in high memory
> uvm_fault(0xffffffff819efa98, 0xffff800e71954040, 0, 2) -> e
> fatal page fault in supervisor mode
> trap type 6 code 2 rip ffffffff8122fced cs 8 rflags 10202 cr2
> ffff800e71954040 cpl 4 rsp ffffffff81c06da8
> gsbase 0xffffffff8199aff0  kgsbase 0x0
> panic: trap type 6, code=2, pc=ffffffff8122fced

OpenBSD 8.0-beta (RAMDISK_CD) #69: Wed Jul 29 22:34:05 MDT 2026

With this kenrnel rip ffffffff8122fced is in x86_bus_space_mem_write_4

ffffffff8122fce9 <x86_bus_space_mem_write_4>:
x86_bus_space_mem_write_4():
ffffffff8122fce9:       55                      push   %rbp
ffffffff8122fcea:       48 89 e5                mov    %rsp,%rbp
ffffffff8122fced:       89 14 3e                mov    %edx,(%rsi,%rdi,1)
ffffffff8122fcf0:       5d                      pop    %rbp
ffffffff8122fcf1:       c3                      retq